Despite the long odds against him in his battle vs. a bigger man in Errol Spence, Mikey Garcia seems relaxed as he heads into his welterweight showdown on Fox PPV on Saturday.

Garcia has been most effective in his career as a 135-pound lightweight—he actually still holds a title in that weight division—but now he’s moving up to 147 against one of the best fighters in the sport. Garcia is +290 underdog, meaning you’d win $290 if you wagered $100, and most boxing observers are predicting that he’ll lose. Spence (24-0, 21 KOs), meanwhile, is a -380 favorite.

But Garcia (39-0, 30 KOs) seems good to go, and he’s picking himself to win.

"I have all the tools and all the skills needed to beat Errol Spence Jr. When it comes to timing, speed, reflexes and defense, you name it, I'm better,” Garcia said. “… I've got to go in there Saturday night and show why I picked this fight. I want to make history and this is the one that will get me there.”

There are plenty of reasons to shell out $74.95 for this PPV. Here are three of them.

1) Errol Spence might be just too darn big: Not only is Spence a full-fledged welterweight, he’s actually a rather large 147-pounder. The moment this fight was made, most people who have predicted it said Garcia is simply too small to compete a specimen like Spence. Garcia, though, said none of that matters. “I have to fight the best fight of my life,” Garcia said. “If I don't, then I can't overcome the challenge. You don't win a fight with size and weight. We fight smart, we fight intelligently and pick our shots. There are a lot of factors. That's how I win this fight.”

2) Can Garcia carry up his power?: One reason why people believe Garcia is too small for Spence is because of the theory that he can’t keep Spence from attacking him (because Spence doesn’t have to be worried about being hurt by the smaller man’s punches). But what if Garcia—who has proven to have a powerful punch as a featherweight, junior lightweight and lightweight—can hurt Spence with his strength? “Not only have all of our sparring partners told us this, but his opponents always say the same thing. Once they're in the ring, they realize how hard Mikey hits and how strong he is,” said Robert Garcia, Mikey’s brother and trainer. “Spence doesn't know that but he'll find out Saturday.” Responded Spence: “I don't think anyone has the power to knock me out. We don't allow that kind of mentality into training camp. I hope he tries though.”

3) Spence wants to prove he’s the best in the world: My pound for pound list has Spence rated as No. 5 (with Vasiliy Lomachenko, Terence Crawford, Gennady Golovkin and Canelo Alvarez ahead of him). But to Spence, there’s little question that he should be No. 1, and he wants to show Garcia and everybody else watching that he’s the best of the best. “This win makes me pound-for-pound No. 1,” Spence said. “Mikey has a great record and a big fan base and I feel like winning this fight turns me into a star. Everyone wants to take Floyd Mayweather's place as the face of boxing, and this puts me on the right track to become the face of boxing and the best fighter in the world. I know I'm the best fighter in the world and I'm going to show it Saturday night. I'm going to punish him and make him wish he took his brother's advice to not take this fight.”

For Conlan, though, it’ll be another special moment fighting at what’s considered to the mecca of boxing, a place he visited as a kid from Ireland and where he once posed in front of the iconic building.

“I was just a kid from a small city in Ireland,” Conlan told Forbes. “There’s not even 6 million people in Ireland. There’s a lot more than that in New York City. It wasn’t even a thought that I could fight [at MSG]. Now, I’m an attraction at the Garden three years running. It’s amazing when I look back on it.”